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Priority to JP15218285UpriorityCriticalpatent/JPH0449689Y2/ja
Priority to KR1019860000246Aprioritypatent/KR900000663B1/ko
Publication of JPS6262309UpublicationCriticalpatent/JPS6262309U/ja
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Publication of JPH0449689Y2publicationCriticalpatent/JPH0449689Y2/ja